Energy-efficient load adaptive polling sequence arrangement scheme for passive optical access networks

An energy-efficient scheme termed as load adaptive sequence arrangement (LASA) is introduced. Based on changing the polling sequence of optical network units (ONUs) according to traffic load, the scheme can improve the energy efficiency of passive optical access networks. The polling sequence arrangement is performed by processing a label that is added in the gate/report message and allocating each ONU an uneven idle time. When the polling sequence is changed, the ONUs that have been allocated longer idle times could sleep much longer. Theoretical analysis indicates that the polling sequence arrangement has a significant effect on the energy efficiency of the network. It can provide ONUs longer total sleeping time, and barely lengthen the average cycle time. Moreover, to optimize the energy consumption performance under a low-traffic scenario, the LASA scheme jointly working with the fixed minimal transmission time (FMT) of the ONU scheme, which is called the LASA-FMT scheme, is further investigated. By ensuring the minimal transmission time of an ONU, the LASA-FMT scheme further extends the total sleeping time of ONUs and improves the energy efficiency. The performance on packet delay of both the LASA scheme and the LASA-FMT scheme is acceptable to support delay sensitive services, which shows the practical value of the two schemes in green network progress.

[1]  Luca Valcarenghi,et al.  Sleep Mode for Energy Saving PONs: Advantages and Drawbacks , 2009, 2009 IEEE Globecom Workshops.

[2]  E. Wong,et al.  Performance evaluation of VCSEL ONU using energy-efficient Just-In-Time dynamic bandwidth allocation algorithm , 2012, 2012 Photonics Global Conference (PGC).

[3]  Biswanath Mukherjee,et al.  IPACT: A dynamic protocol for an Ethernet PON (EPON) , 2002, IEEE Commun. Mag..

[4]  C. Lange.  Energy Efficiency of Load-Adaptively Operated Telecommunication Networks , 2014, Journal of Lightwave Technology.

[5]  Lena Wosinska,et al.  Experimental evaluation of cyclic sleep with adaptable sleep period length for PON , 2011, 2011 37th European Conference and Exhibition on Optical Communication.

[6]  Nico Bayer,et al.  Energy Efficiency of Load-Adaptively Operated Telecommunication Networks , 2014 .

[7]  Jun-ichi Kani,et al.  Energy efficient optical access network technologies , 2011, 2011 Optical Fiber Communication Conference and Exposition and the National Fiber Optic Engineers Conference.

[8]  Arnaud Dupas,et al.  Demonstration of low-power bit-interleaving TDM PON , 2012, 2012 38th European Conference and Exhibition on Optical Communications.

[9]  Yuefeng Ji,et al.  Power saving mechanism and performance analysis for 10 Gigabit-class passive optical network systems , 2010, 2010 2nd IEEE InternationalConference on Network Infrastructure and Digital Content.

[10]  Maluge Pubuduni Imali Dias,et al.  Sleep/doze controlled dynamic bandwidth allocation algorithms for energy-efficient passive optical networks. , 2013, Optics express.

[11]  Biswanath Mukherjee,et al.  Supporting differentiated classes of service in Ethernet passive optical networks , 2002 .

[12]  Arnaud Dupas,et al.  Demonstration of low-power bit-interleaving TDM PON , 2014 .

[13]  J. Kani.  Power saving techniques for optical access , 2012, OFC/NFOEC.

[14]  Leonid G. Kazovsky,et al.  Demonstration of energy conserving TDM-PON with sleep mode ONU using fast clock recovery circuit , 2010, 2010 Conference on Optical Fiber Communication (OFC/NFOEC), collocated National Fiber Optic Engineers Conference.

[15]  Kun Qiu,et al.  Study on the energy-efficient scheme based on the interconnection of optical-network-units for next generation optical access network , 2014 .

[16]  Ka-Lun Lee,et al.  Energy efficiency in future 40-Gb/s fiber access networks , 2012, OFC/NFOEC.

[17]  Didier Colle,et al.  ONU power saving modes in next generation optical access networks: progress, efficiency and challenges. , 2012, Optics express.

[18]  Elaine Wong,et al.  Energy-efficiency of optical network units with vertical-cavity surface-emitting lasers. , 2012, Optics express.

[19]  R.S. Tucker,et al.  Implications of sleep mode on activation and ranging protocols in PONs , 2008, LEOS 2008 - 21st Annual Meeting of the IEEE Lasers and Electro-Optics Society.